Stick with stock size tires, anything bigger will just slow you down. Intake, exhaust & Uprev will give you a lot of power Make sure you research the exhaust before you buy. If I can give you a little advice, stay away from any chambered muffler!! ANY, don't care what anyone says!! With you being an 08' just do a muffler swap. If you want loud go with dual bullets. If you want kind of loud go with an 18" magnaflow. If you want just louder than stock go with a 22" maganflow. Magnaflow will drone just a bit though. As far as CAI goes, any CAI will be good, Aem, S&B, Volant ect. Good luck man and if you need anything just post it up. We love helping people mod the chit out of their trucksthanks for the info! i will have my titan for a few years.i will be doing alot of mods. over the summer and will get some headers on soon. would like to go with a stillen sup.charger but the wife said too much$$$ but i will work on her this summer.for now just workin on exaust,air,tires,and tuner.
Quick question, does anyone know if their software supports Macs now? Or in the future will they support it? Looking to buy one but not sure what I will do about the uprev issue. My windows laptop is just having problems one after another and I'm fed up with it.Buy my BDGT and my Blend mount for $350 and I'll go get the Uprev. I'm happy with my BDGT, but I was getting better gas mileage with the Hypertech tuning. The nice thing about the BDGT is that you can view your stats on it. I did not get the Uprev because I have a Macbook and at the time of purchase, their software didn't support Macs.